124 lines
2.8 KiB
YAML
124 lines
2.8 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/sound/rockchip,pdm.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Rockchip PDM controller
|
||
|
|
|
||
|
|
description:
|
||
|
|
The Pulse Density Modulation Interface Controller (PDMC) is
|
||
|
|
a PDM interface controller and decoder that support PDM format.
|
||
|
|
It integrates a clock generator driving the PDM microphone
|
||
|
|
and embeds filters which decimate the incoming bit stream to
|
||
|
|
obtain most common audio rates.
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Heiko Stuebner <heiko@sntech.de>
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: dai-common.yaml#
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
enum:
|
||
|
|
- rockchip,pdm
|
||
|
|
- rockchip,px30-pdm
|
||
|
|
- rockchip,rk1808-pdm
|
||
|
|
- rockchip,rk3308-pdm
|
||
|
|
- rockchip,rk3568-pdm
|
||
|
|
- rockchip,rv1126-pdm
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
clocks:
|
||
|
|
items:
|
||
|
|
- description: clock for PDM controller
|
||
|
|
- description: clock for PDM BUS
|
||
|
|
|
||
|
|
clock-names:
|
||
|
|
items:
|
||
|
|
- const: pdm_clk
|
||
|
|
- const: pdm_hclk
|
||
|
|
|
||
|
|
dmas:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
dma-names:
|
||
|
|
items:
|
||
|
|
- const: rx
|
||
|
|
|
||
|
|
power-domains:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
resets:
|
||
|
|
items:
|
||
|
|
- description: reset for PDM controller
|
||
|
|
|
||
|
|
reset-names:
|
||
|
|
items:
|
||
|
|
- const: pdm-m
|
||
|
|
|
||
|
|
rockchip,path-map:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32-array
|
||
|
|
description:
|
||
|
|
Defines the mapping of PDM SDIx to PDM PATHx.
|
||
|
|
By default, they are mapped one-to-one.
|
||
|
|
maxItems: 4
|
||
|
|
uniqueItems: true
|
||
|
|
items:
|
||
|
|
enum: [ 0, 1, 2, 3 ]
|
||
|
|
|
||
|
|
"#sound-dai-cells":
|
||
|
|
const: 0
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- interrupts
|
||
|
|
- clocks
|
||
|
|
- clock-names
|
||
|
|
- dmas
|
||
|
|
- dma-names
|
||
|
|
- "#sound-dai-cells"
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/clock/rk3328-cru.h>
|
||
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||
|
|
#include <dt-bindings/pinctrl/rockchip.h>
|
||
|
|
|
||
|
|
bus {
|
||
|
|
#address-cells = <2>;
|
||
|
|
#size-cells = <2>;
|
||
|
|
|
||
|
|
pdm@ff040000 {
|
||
|
|
compatible = "rockchip,pdm";
|
||
|
|
reg = <0x0 0xff040000 0x0 0x1000>;
|
||
|
|
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
|
||
|
|
clock-names = "pdm_clk", "pdm_hclk";
|
||
|
|
dmas = <&dmac 16>;
|
||
|
|
dma-names = "rx";
|
||
|
|
#sound-dai-cells = <0>;
|
||
|
|
pinctrl-names = "default", "sleep";
|
||
|
|
pinctrl-0 = <&pdmm0_clk
|
||
|
|
&pdmm0_sdi0
|
||
|
|
&pdmm0_sdi1
|
||
|
|
&pdmm0_sdi2
|
||
|
|
&pdmm0_sdi3>;
|
||
|
|
pinctrl-1 = <&pdmm0_clk_sleep
|
||
|
|
&pdmm0_sdi0_sleep
|
||
|
|
&pdmm0_sdi1_sleep
|
||
|
|
&pdmm0_sdi2_sleep
|
||
|
|
&pdmm0_sdi3_sleep>;
|
||
|
|
};
|
||
|
|
};
|